PHP利用socket模拟post之fsockopen发送数据

POST /目的程序 HTTP/1.1
Accept: */*
Referer: http://www.111com.net
Accept-Language: zh-cn,en-us;q=0.5
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; .NET CLR 1.0.3705; .NET CLR 1.1.4322)
Host: 要发送到的主机地址
Content-Length: 发送数据的长度
Pragma: no-cache
Cache-Control: no-cache
username=php&password=iask   //post发送的数据

$port = $url['port'] ? $url['port'] : 80;
$fp = fsockopen($url['host'], $port, $errno, $errstr,10);
if (!$fp) return "在主机： $url[host] $port 打开socket失败，失败原因是: $errno - $errstr";
fputs($fp, sprintf("POST %s%s%s HTTP/1.0rn", $url['path'], $url['query'] ? "?" : "", $url['query']));
fputs($fp, "Host:".$url['host']."rn");
fputs($fp, "Content-type: application/x-www-form-urlencodedrn");
fputs($fp, "Content-length: " . strlen($encoded) . "rn");
fputs($fp, "Connection: closernrn");
fputs($fp, "$encodedn");